[time-nuts] HP 5071A Electron Multiplier of Cesium Beam Tube

Magnus Danielson magnus at rubidium.dyndns.org
Tue Sep 8 21:25:22 UTC 2009

Mark Sims wrote:
> At least the cesium ions don't have to travel through a maze of twisty passages,  all alike...
> ----------------------------------------
> Oh Plugh!

Just to be perfectly clear, the cesium (caesium) atoms is neutral as 
they pass through the A-magnet, microwave interigations, C-field and 
B-magnet. It is only when they hit the masspectrometer wire that they 
get ionized... and that current is was is measured as beam current.

If the the atoms was ionized from start, they would react much more 
agressively to magnetic fields and would be easier to detect as well... 
the whole physical package would be quite different.

Just look at mercury ion standards...


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